Disposing of bombs has cost coastguards more than £1,200 over the past three years.
A Freedom of Information request to the Department of Infrastructure asked how many explosive devices had been found since 2018 and how much it cost to dispose of them.
In its response, the department said Explosive Ordnance Disposal teams from the Royal Logistics Corps didn't cost anything.
But it said six incidents where items such as World War 2 mortars had been unearthed had cost a total of £1,281 to pay coastguard staff.
Volunteer wanted to help monitor Island's prison
MHK asks if families should get help with UK parole travel costs
Peel RNLI honoured for lifesaving actions at sea
Plans submitted to turn former offices into homes
Island has just 20 vacant homes for public tenants
Power station chimney flue arrives this week
Peel sewage works hits milestone